Metal casing for tugs.



PATEN-TED JUNE-:2, 1903..

No. 729,611. x

w. A. LANE.

METAL CASING FOR TUGS.

APPLICATION IILBD MAY'I. 1902. MLMODBL.

Ll IIIIII I INVENTOR WI TNESSES Attorney UNITED, STATES Patented June 2,1903.

WILBER A. LANE, OF NORTH HAVEN, CONNECTICUT.

METAL CASING FOR TUGS.

SPECIFICATION forming part of Letters Patent N 0. 729,611, dated June 2,1903.

\ Application filed May 1. 1902. Serial No. 105 ,454- (No model.)

To all whom, it may concern;

Be it known that I, WILBER A. LANE, a citizen of the United States,residing at North Haven, county of New Haven, and State of Connecticut,have invented anew and useful Improvement in Metal Casings for Harness-Tugs.

My invention relates to improvements in metal casings for harnessshaft-tugs, the objects of the improvements being to add by practicalmeans to the usefulness and durability of same, first, by furnishing anefficient metal casing adapted for immediate application to tugs alreadyin use; second, by a change of material from a spring to rigid metalfurnish a stronger and heavier casing for application to new tugs whenmanufacturing same; third, to furnish a metal wearing-casing that shallpossess within itself the means for securing same within the tug-openingfrom lateral and vertical movement. I attain these objects by 'meansshown in the accompanying drawings, in which- Figure 1 is a tugemploying a light springcasing; Fig. 2, a perspective view of a heaviercasing; Fig. 3, a cross-section along line a a, Fig. 1; Fig. 4, a Viewof a light springmetal casing; Figs. 5 and 6, sectional views alongdotted line b b, Fig. 1, showing inner surfaces of casing and tug andmeans e d for securing the casing from verticalfinovement within thetug.

Similar letters refer to similar parts in. all the figures.

A is a view of a tug, showing form and application of casing.

B is the body of casing, showing general form of construction, bothcompressible and rigid, for old and new tugs. (See Figs. 4 and 2.)

For ready application to old tugs a light compressible spring metal isemployed. (See Fig. 4.) For new tugs a heavier form constructed of rigidmetal is preferred. (See Fig. 2.) The general outward form of casing ispreserved for either adaptation and metal.

0 C are narrow flanges extending along each outside edge backfrom bodyof easing, having sufficient width to stiifen the casing and inclose theinner side corners of the tug, the casing being held securely fromtransverse movement by the flange projections f f f f,

extended from flanges O C, (see Figs. 1, 2, and 4,) and from verticalmovement by bending inwardly the ends of the flange projections f f ff,by this means locking securely the body of. the casing through sideflanges and the flexible material forming the tug, whether the casing beof spring or rigid malleable metal.

The side flanges C C are preferably made slightly tapering from centerof casing toward the ends.

The body of the spring-casing is held in place by pressure from thespring expansion exerted through the ends of the casing on inner surfaceof the tug.

In constructing the casing from spring sheet metal a strip is cut to thelength and width of body of casing, including flanges and flangeprojections, and latter bent to angle required withbody of easing, whichis then drawn between rollers, bending same to required curve of thetug, after which the ends of the springcasing are drawn nearer togetherand secured by a wire preferablypassing through rivetholes (Z d at endsof same. (See Figs. 2, 5, and 6.) hen the compressed steel casing isapplied to the opening" in the tug, the wire is removed and the casingheld in place, as

before stated.

. To meet variations in sizes in old tugs, ad ditional means offastening are provided through the V-shaped tongues e e at ends ofeasing, the points of which are driven back into the tug when applied(see Figs. 1, 2, 5, and 6 or through rivets passing through holes (I andsides of tug and same riveted together. I

The rigid metal casing is constructed from pattern of malleable iron,brass, steel, or other suitable metal, excepting an'additional thicknessof material for stiifness and durability. (See Fig. 2.) The spring andrigid casings are alike in form. (See Figs. 2 and 4.) Beingnon-compressible, the rigid casing is better adapted for employment whenthe tug is being constructed. The compressible form gives to old tugsthe practical benefit of the improvements through readyapplication, asbefore stated. r

I am aware that metal casings with plain side flanges have been made,and I do not claim such, broadly, as my invention; but

IOC

What I do claim, and desire to secure by Letters Patent, is

1. The harness-tug casing herein described, constructed of metal, openat one end, and having a rounded outer surface corresponding with innersurface of tug, and provided with side flanges, and flange projectionsextending from same, substantially as shown, and for purposes specified.

2. The harness-tug casing herein described, constructed of metal, openat one end, and having a rounded outer surface corresponding with innersurface of tug, and provided with side flanges having side-flangeprojections, and V-shaped tongues on the ends of casing for securing thesame, substantially as shown, for purposes specified.

3. The harness-tug casing herein described, constructed of spring metal,open at one end, having a rounded outer surface, correspond-;

WILBER A. LANE.

Witnesses:

ROBERT B. HUGUNIN, MARY L. HUGUNIN.

